EP2546032B1 - Parallel link robot and picking system - Google Patents

Parallel link robot and picking system Download PDF

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Publication number
EP2546032B1
EP2546032B1 EP12176307.2A EP12176307A EP2546032B1 EP 2546032 B1 EP2546032 B1 EP 2546032B1 EP 12176307 A EP12176307 A EP 12176307A EP 2546032 B1 EP2546032 B1 EP 2546032B1
Authority
EP
European Patent Office
Prior art keywords
parallel link
housing
link robot
ceiling
motor unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12176307.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2546032A2 (en
EP2546032A3 (en
Inventor
Kazuhiro Fukudome
Takashi Sanada
Nobuhiko Mihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yaskawa Electric Corp filed Critical Yaskawa Electric Corp
Publication of EP2546032A2 publication Critical patent/EP2546032A2/en
Publication of EP2546032A3 publication Critical patent/EP2546032A3/en
Application granted granted Critical
Publication of EP2546032B1 publication Critical patent/EP2546032B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J17/00—Joints
    • B25J17/02—Wrist joints
    • B25J17/0258—Two-dimensional joints
    • B25J17/0266—Two-dimensional joints comprising more than two actuating or connecting rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
    • B25J19/0075—Means for protecting the manipulator from its environment or vice versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/0009—Constructional details, e.g. manipulator supports, bases
    • B25J9/0018—Bases fixed on ceiling, i.e. upside down manipulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element
    • Y10T74/20305—Robotic arm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element
    • Y10T74/20305—Robotic arm
    • Y10T74/20317—Robotic arm including electric motor

Definitions

  • the present invention relates to a parallel link robot and a picking system.
  • a parallel link mechanism refers to a mechanism that includes a plurality of arms coupled in parallel to each other and a single distal end supported by the plurality of arms.
  • a parallel link robot controls the distal end by the sum of the forces of the plurality of arms. This makes parallel link robots superior in speed and accuracy to general industrial robots such as serial link robots.
  • Japanese Unexamined Patent Application Publication No. 2008-264881 discloses a parallel link robot that includes three arms.
  • EP 1 938 929 A1 discloses a parallel link robot for higher hygienic requirement, comprising a housing with a cover body including a botton and arm coupling openings.
  • the present invention has been made in view of the above-described circumstances, and it is an object of the present invention to provide a parallel link robot and a picking system that ensure hygiene during maintenance.
  • the present invention provides a parallel link robot as defined in claim 1, which includes a housing, a plurality of driving devices, and a plurality of arms.
  • the housing includes arm coupling openings and a receiving opening.
  • the plurality of driving devices are disposed in the receiving opening of the housing.
  • the driving devices are attachable and detachable from and in a direction above the receiving opening.
  • the plurality of arms are coupled to the respective driving devices through the respective arm coupling openings.
  • the present invention provides a picking system as defined in claim 4, which includes a robotic cell and a parallel link robot.
  • the robotic cell includes a ceiling including an opening.
  • the parallel link robot is disposed on the ceiling of the robotic cell to cover the opening of the ceiling.
  • the parallel link robot includes a housing, a plurality of driving devices, and a plurality of arms.
  • the housing includes arm coupling openings and a receiving opening.
  • the plurality of driving devices are disposed in the receiving opening of the housing.
  • the plurality of driving devices are attachable and detachable from and in a direction above the receiving opening through the opening of the ceiling.
  • the plurality of arms are coupled to the respective driving devices through the respective arm coupling openings.
  • the parallel link robot and the picking system according to the embodiments of the present invention ensure hygiene during maintenance.
  • a parallel link robot is applied to a picking system that captures workpieces carried on a conveyor and moves the workpieces to another position.
  • the workpieces carried on the conveyor are hygiene sensitive products such as food products and pharmaceutical products. This embodiment, however, is for illustrative purposes only and should not be construed as limiting the present invention.
  • FIG. 1 is a schematic view of the picking system according to this embodiment.
  • a picking system S includes a conveyor 1, two parallel link robots 2, a controller 3, and a robotic cell 4.
  • the conveyor 1 is a conveying unit that conveys workpieces W from upstream to downstream. While in this embodiment the conveyor 1 is a belt conveyor, this should not be construed in a limiting sense; the conveyor 1 may be another kind of conveying unit such as a roller conveyor and a chain conveyor.
  • Each of the parallel link robots 2 includes a parallel link mechanism. Each parallel link robot 2 executes capture operations and transferring operations of workpieces W in accordance with instructions from the controller 3.
  • the parallel link robot 2 includes three arms 23 coupled in parallel to each other to support a movable portion 25. Each of the three arms 23 is independently driven by its corresponding one of three motor units 22 accommodated in a housing 21.
  • the movable portion 25 includes an end effector 25a and a motor unit 25b.
  • the end effector 25a is, for example, a suction pad that captures workpieces W utilizing suction force effected by a suction device such as a suction pump.
  • the motor unit 25b is a driving device that rotates the end effector 25a.
  • the parallel link robot 2 drives the motor unit 22 in the housing 21 and drives the motor unit 25b at the movable portion 25. This causes the end effector 25a to move to the workpiece W to be captured and then to capture the workpiece W.
  • the controller 3 controls the operation of the parallel link robot 2. Specifically, the controller 3 obtains an overhead image of the conveyor 1 from a camera, not shown, disposed above the conveyor 1 and detects the workpiece W by referring to the obtained image. The controller 3 then instructs the parallel link robot 2 to capture the workpiece W based on the detection result.
  • the robotic cell 4 has an approximately rectangular parallelepiped shape enclosing the parallel link robots 2 for safety purposes, such as to prevent an operator from physically contacting the parallel link robots 2 in motion.
  • the robotic cell 4 includes, on its side surfaces, transparent members of polycarbonate or like material to ensure visual identification of the parallel link robots 2 operating in the robotic cell 4.
  • a door with a handle 43 is disposed on one side surface of the robotic cell 4. The door provides access to the parallel link robots 2 inside the robotic cell 4, specifically by pulling the handle 43 to open the door.
  • the robotic cell 4 is covered on top with a ceiling 41 of metal material such as a steel plate. To the undersurface of the ceiling 41, the parallel link robots 2 are secured. Thus, the parallel link robots 2 capture the workpieces W from above the conveyor 1.
  • the ceiling 41 may be the ceiling of the plant itself where the picking system S is disposed.
  • the space below the ceiling 41, that is, the region defined by the robotic cell 4 is a workspace A1 where the conveyor 1 and the parallel link robot 2 are disposed.
  • the workspace A1 is a hygiene sensitive space in which to handle food or pharmaceutical workpieces W.
  • the parallel link robots 2 need to ensure a minimal possibility of causing unhygiene conditions such as the conveyor going unclean due to foreign matters including bolts, grease, and dusts that have dropped onto the conveyor during maintenance.
  • the picking system S provides a maintenance space A2 of the parallel link robots 2 at a place isolated while the operator staying in the workspace A1.
  • the maintenance space A2 is above the ceiling 41.
  • the parallel link robots 2 are configured in a manner that permits their maintenance in the maintenance space A2. This ensures hygiene during maintenance.
  • the ceiling 41 includes predetermined openings 42.
  • the housing 21 of each parallel link robot 2 is open on top so that the motor units 22 and other elements accommodated inside the housing 21 are attachable and detachable from and in a direction above the housing 21.
  • Each parallel link robot 2 is mounted on the ceiling 41 with the opening of the housing 21 aligned with the corresponding opening 42 of the ceiling 41. This ensures that the motor units 22 and other elements accommodated in the housing 21 undergo maintenance including replacement, repair, and inspection while the operator staying in the maintenance space A2.
  • the controller 3 is preferably disposed in the maintenance space A2. This eliminates the need for a space for the controller 3 in the workspace A1, saving the space of the picking system S.
  • FIG. 2A is a schematic perspective view of the parallel link robot 2 according to this embodiment.
  • the parallel link robot 2 includes the housing 21, the arms 23, and a lid 24. As described above by referring to FIG. 1 , the parallel link robot 2 also includes the motor units 22 and the movable portion 25.
  • the housing 21 is in the form of a cover body with a bottom and accommodates the motor units 22.
  • the housing 21 includes three openings 211 at positions higher than the bottom of the housing 21. Through the openings 211, the respective arms 23 are passed inside the housing 21.
  • the configuration of the housing 21 will be described in detail later by referring to FIG. 3 .
  • Each motor unit 22 is a driving device to drive its corresponding arm 23 and is accommodated in the housing 21, as shown in FIG. 1 .
  • the motor unit 22 according to this embodiment is a reducer equipped motor unit integrally including a motor and a reducer. The configuration of the motor unit 22 will be described later by referring to FIG. 4 .
  • Each arm 23 is made of a lightweight material such as aluminum casting.
  • the arm 23 has a base end coupled to its corresponding motor unit 22 inside the housing 21 through the opening 211. As described above by referring to FIG. 1 , the distal end of the arm 23 is coupled to its corresponding movable portion 25. Thus, the arms 23 are coupled in parallel to each other. A method for mounting the motor unit 22 and the arm 23 on the housing 21 will be described later by referring to FIG. 4 .
  • the lid 24 covers the opening at the top of the housing 21.
  • the lid 24 includes ring hooks 241 on the top surface.
  • the hooks 241 are used to mount the parallel link robot 2 onto the ceiling 41 of the robotic cell 4. This will be described later by referring to FIGs. 7A and 7B .
  • Each hook 241 includes a ring shaped member and a bolt shaped member.
  • the lid 24 is secured to the housing 21 by the bolt shaped member of the hook 241. This will be described later by referring to FIG. 3 .
  • the lid 24 has an opening at the center.
  • the opening is covered with a connector base 242.
  • the connector base 242 collectively accommodates various connectors and associated elements that couple the wirings inside the parallel link robot 2 to external wirings.
  • the connector base 242 includes a connector 243 for power feeding cables, a connector 244 for control cables, a connector 245 for connection with external equipment, and a connector 246 for connection of an air tube between the end effector 25a and the suction device.
  • the connector base 242 is secured to the lid 24 with screws 248 via a gasket, not shown.
  • the connector base 242 is detachable from the lid 24, and this ensures replacement and other work associated with the wirings without opening the lid 24.
  • the connector base 242 has an opening, which is covered by a battery base 247.
  • the battery base 247 is attached with a battery 250 for the encoders of the motors of the motor units 22.
  • FIG. 2B is a schematic rear view of the connector base 242.
  • the connector base 242 accommodates, on its rear surface, the connector 243 for power feeding cables, the connector 244 for control cables, the connector 245 for connection with external equipment, the connector 246 for air tube connection, and the battery 250 for the encoders.
  • the battery 250 for the encoders is mounted on the connector base 242 via the battery base 247, as described above.
  • the battery base 247 is secured to the connector base 242 with screws 249 via a gasket, not shown.
  • the battery base 247 is detachable from the connector base 242, and this ensures independent removal of the battery 250, which is replaced comparatively frequently.
  • the connector 243 for power feeding cables shown in FIG. 2B is coupled with the power feeding cables of the motor units 22.
  • the connector 244 for control cables shown in FIG. 2B is coupled with the control cables of the motor units 22.
  • the battery 250 for the encoders shown in FIG. 2B is coupled with the encoder feeding cables of the motor units 22.
  • FIG. 3 is a schematic exploded perspective view of the housing 21.
  • the housing 21 is of a double structure of a holding portion 21a and a cover 21b.
  • the holding portion 21a holds the motor units 22.
  • the cover 21b has a bottom to cover the lower portions of the motor units 22 held by the holding portion 21a.
  • the housing 21 has a double structure making the housing 21 dividable, this should not be construed in a limiting sense.
  • the housing 21 may be integral die-casting of a single casting material or other material.
  • the holding portion 21a which is a structural member, may be made of metal, while the cover 21b may be made of a lighter material such as light metal and resin.
  • the holding portion 21a is in the form of an approximate tray with an opening on top.
  • the holding portion 21a includes, on its bottom surface, cutouts 213 of approximately the same shapes as the outlines of the respective motor units 22.
  • Each cutout 213 includes, on its both sides, steps 214 of slight depressions below the bottom surface of the holding portion 21a.
  • the holding portion 21a includes, on its bottom surface, a communication hole 216 through which a suction air tube passes.
  • the gap between the air tube and the communication hole 216 is sealed by sealing treatment. This improves air tightness and liquid tightness inside the holding portion 21a.
  • the holding portion 21a includes a flange 215 at the upper end edge.
  • the flange 215 serves as the surface at which the parallel link robot 2 is mounted on the ceiling 41. It is also at the flange 215 that the cover 21b and the lid 24 are secured to the holding portion 21a.
  • the flange 215 includes bolt holes 251a.
  • the bolt holes 251a are used to secure the lid 24 to the holding portion 21a.
  • the lid 24 has similar bolt holes 240 to the bolt holes 251a.
  • the bolt shaped members of the hooks 241 are inserted into the bolt holes 240 and the bolt holes 251a, securing the lid 24 to the holding portion 21a.
  • the lid 24 is mounted on the holding portion 21a via a ring gasket 260.
  • the flange 215 includes bolt holes 251b at the side further outward than the bolt holes 251a.
  • the bolt holes 251b are bolt holes through which to pass securing members (bolts 100c, described later) at the time of mounting the parallel link robot 2 on the ceiling 41 of the robotic cell 4.
  • the cover 21b is an approximately bowl-shaped, integral casting formed in a mold.
  • the cover 21b is also open on top and has an upper end edge secured to the flange 215 of the holding portion 21a.
  • the cover 21b has a smoothly curved external surface. This makes the housing 21 resistant to contamination and facilitates cleaning.
  • Each opening 211, which is for arm coupling, is disposed on the cover 21b.
  • receiving opening 212 The opening on top of the holding portion 21a will be hereinafter referred to as "receiving opening 212".
  • FIG. 4 is a perspective view of the housing 21 illustrating a method for mounting the motor unit 22 and the arm 23.
  • the motor unit 22 is a reducer equipped motor unit including a casing 221, a motor 222, and a reducer 223.
  • the motor 222 and the reducer 223 are integrally mounted on the casing 221.
  • FIG. 5 is a schematic side view of the motor unit 22.
  • the motor unit 22 includes the casing 221, the motor 222, the reducer 223, pulleys 226 and 227, and a belt 228.
  • the motor 222 is an electric motor to drive the arm 23.
  • the reducer 223 reduces the rotation speed of the motor 222 and outputs the resulting force to the arm 23.
  • the pulleys 226 and 227 are respectively mounted on the shafts of the motor 222 and the reducer 223.
  • the belt 228 is looped around the pulleys 226 and 227 so as to transmit the rotational force of the motor 222 to the reducer 223 through the pulleys 226 and 227.
  • the motor 222, the reducer 223, the pulleys 226 and 227, and the belt 228 are integrally mounted on the casing 221.
  • the casing 221 includes flanges 221a on top edges.
  • the motor unit 22 is inserted into the cutout 213 of the holding portion 21a, and the flanges 221a are brought into contact with the steps 214 at both sides of the cutout 213.
  • the motor unit 22 is held by the holding portion 21a of the housing 21.
  • the motor unit 22 has its flanges 221a coupled to the steps 214 with securing members such as bolts 100a. Thus, the motor unit 22 is secured to the holding portion 21a.
  • the bolts 100a are inserted through the receiving opening 212 from a direction above the receiving opening 212.
  • the motor unit 22 is accommodated in the housing 21. Specifically, the motor unit 22 is held by the holding portion 21a and covered with the cover 21b. This ensures that debris, if any, accumulates on the bottom of the cover 21b. Debris includes a leakage of grease from the reducer 223 and abrasion powder from the motor 222, the belt 228, or other members. This, in turn, eliminates or minimizes the possibility of these kinds of debris dropping onto the conveyor 1 below the parallel link robot 2. Although there are the arm coupling openings 211 on the cover 21b, the arm coupling openings 211 are disposed at positions higher than the bottom of the cover 21b, as described above. This minimizes the possibility of dropping, through the openings 211, of foreign matters accumulated on the bottom of the cover 21b.
  • the housing 21 of the parallel link robot 2 includes the receiving opening 212, through which the motor unit 22 is attached and detached from and in a direction above the receiving opening 212. This ensures that the operator can stay in the maintenance space A2 when attaching and detaching the motor unit 22. This minimizes the possibility of dropping of the bolts 100a, grease, abrasion powder, and other foreign matters onto the conveyor 1 during maintenance of the parallel link robot 2.
  • Debris such as grease and abrasion powder does not scatter but, instead, accumulates mainly in the cover 21b below the motor unit 22. This ensures that debris is easily removed while the operator staying in the maintenance space A2.
  • the parallel link robot 2 includes the lid 24 to cover the receiving opening 212.
  • the receiving opening 212 is thus sealed all the time except at maintenance. This eliminates or minimizes dust or other material entering the housing 21.
  • the arms 23 are attached and detached while the operator staying next to the housing 21, that is, staying in the workspace A1.
  • each arm 23 includes, at its base end, a cylindrical coupling portion 231 open at one end.
  • the coupling portion 231 is inserted into the housing 21 through the opening 211 of the cover 21b, and this brings the coupling portion 231 into contact with the reducer 223 of the motor unit 22 accommodated in the housing 21.
  • the other end of the coupling portion 231, which is opposite the open one end, is in contact with the reducer 223 and covered with a surface having bolt holes.
  • the coupling portion 231 and the reducer 223 are coupled to one another with securing members such as bolts 100b.
  • the arm 23 is coupled to the motor unit 22.
  • the open one end of the coupling portion 231 is covered with a cap member 232 after the arm 23 is coupled to the motor unit 22.
  • the cap member 232 is disposed at the coupling portion 231 to eliminate or minimize dropping of disconnected bolts 100b, if any, onto the conveyor 1.
  • FIG. 6 is a schematic top view of the housing 21 on which the motor unit 22 is mounted.
  • each motor unit 22 is coupled to, for example, a power feeding cable, a control cable, and an encoder power feeding cable (these cables will be hereinafter referred to as "cables 224").
  • the respective cables 224 are coupled to the connector 243 for power feeding cables disposed on the connector base 242, the connector 244 for control cables disposed on the connector base 242, and the battery 250 for the encoders disposed on the connector base 242.
  • Each cable 224 includes a relay connector 225 at a middle portion of the cable 224.
  • the cable 224 is separatable and connectable at the relay connector 225.
  • the housing 21 is coupled to the lid 24 with the cables 224, the cables 224 are separatable at their respective relay connectors 225, and this eliminates or minimizes tangling of the cables 224 when the lid 24 is open.
  • FIGs. 7A and 7B are schematic front views illustrating a method for mounting the parallel link robot 2.
  • FIG. 7A shows a step of lifting the parallel link robot 2 up to the ceiling 41.
  • FIG. 7B shows a step of, after lifting the parallel link robot 2 up to the ceiling 41, securing the parallel link robot 2 to the ceiling 41.
  • wires 300 are threaded through the respective hooks 241 of the parallel link robot 2.
  • the wires 300 extend to the maintenance space A2 through the opening 42 of the ceiling 41. Pulling the wires 300 lifts the parallel link robot 2 up to the ceiling 41.
  • the flange 215 (see FIG. 3 ) is in contact with the undersurface of the ceiling 41, as shown in FIG. 7B .
  • Securing members such as bolts 100c are inserted into the ceiling 41 and the bolt holes 251b (see FIG. 3 ) of the flange 215.
  • the parallel link robot 2 is secured to the ceiling 41.
  • the bolts 100c are inserted from a direction above the ceiling 41. This eliminates or minimizes dropping of disconnected bolts 100c, if any, in the maintenance space A2 or in the housing 21 of the parallel link robot 2. This, in turn, eliminates or minimizes dropping of disconnected bolts 100c, if any, onto the conveyor 1.
  • the operator discontinues the parallel link robot 2.
  • the operator removes the bolts 100b (see FIG. 4 ).
  • the arm 23 is detached off the motor unit 22.
  • the operator removes the power feeding cables, the control the cables, the air tubes, and like members.
  • the operator loosens the hooks 241 screwed to the lid 24 and opens up the lid 24.
  • the operator then separates each cable 224 at the relay connector 225.
  • the lid 24 is removed off the housing 21.
  • the operator looses the bolts 100a and lifts up the motor unit 22. Then in some other workspace, the operator disassembles the motor unit 22 and replaces the used belt 228 with a new belt.
  • the parallel link robot 2 involves a minimal process step count in the workspace A1 during maintenance such as belt replacement. This minimizes the possibility of the workspace A1 going unclean during maintenance.
  • the motor 222, the reducer 223, the belt 228, and other members are mounted on the common casing 221. This ensures collective removal of the motor 222, the reducer 223, the belt 228, and other members, by loosening the bolts 100a. This improves work efficiency. This also ensures that meticulous work such as replacement of the belt 228 may be implemented at a separate maintenance workspace away from the robotic cell 4. This minimizes the process step count in the maintenance space A2 and improves work efficiency.
  • the housing with arm coupling openings accommodates a plurality of motor units.
  • the housing also includes a receiving opening through which the motor units are attachable and detachable from and in a direction above the receiving opening. This ensures hygiene during maintenance.
  • a reducer equipped motor unit integrally including a motor and a reducer has been described as an exemplary driving device to drive the arm. This, however, should not be construed in a limiting sense. It is also possible to dispose the motor and the reducer independently.
  • a picking system including two parallel link robots has been described as an exemplary picking system. This, however, should not be construed in a limiting sense. It is also possible to use one or more than three parallel link robots.
  • each parallel link robot includes a suction pad as the end effector.
  • the parallel link robot may include any other end effector insofar the end effector is capable of capturing workpieces.
  • the parallel link robot may include a hand-shaped end effector to capture workpieces.
  • an exemplary parallel link robot includes three arms. This, however, should not be construed as limiting the number of arms of the parallel link robot. Of course, the number of driving devices to drive the arms increases or decreases to correspond to the number of the arms.

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  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
EP12176307.2A 2011-07-15 2012-07-13 Parallel link robot and picking system Active EP2546032B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011156859A JP5454524B2 (ja) 2011-07-15 2011-07-15 パラレルリンクロボットおよびピッキングシステム

Publications (3)

Publication Number Publication Date
EP2546032A2 EP2546032A2 (en) 2013-01-16
EP2546032A3 EP2546032A3 (en) 2013-06-12
EP2546032B1 true EP2546032B1 (en) 2020-04-15

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EP12176307.2A Active EP2546032B1 (en) 2011-07-15 2012-07-13 Parallel link robot and picking system

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US (1) US9114538B2 (ja)
EP (1) EP2546032B1 (ja)
JP (1) JP5454524B2 (ja)
CN (1) CN102873686B (ja)

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JP6366932B2 (ja) * 2013-12-10 2018-08-01 川崎重工業株式会社 ワーク反転支援装置および同装置を備えたロボットセル
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JP5454524B2 (ja) 2014-03-26
CN102873686A (zh) 2013-01-16
EP2546032A2 (en) 2013-01-16
EP2546032A3 (en) 2013-06-12
CN102873686B (zh) 2015-10-28
US20130017050A1 (en) 2013-01-17
JP2013022652A (ja) 2013-02-04
US9114538B2 (en) 2015-08-25

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